SUBGENUS TRICHAPION — KISSINGER 337 



Apion {Trichapion) evustum, new species 



Figure 12,j,k 



Description: Length, 2.12 to 2.25 mm.; width, 1.12 mm. 



"Robust. Beak, antennae, head, and pro thorax black; elytra, 

 abdomen, mesothorax and metathorax pale reddish; coxae and legs 

 darker red. Pubescence white, fine, prothorax with a number of 

 scales on basal median region and a few along median line; elytra 

 glabrous except at apex; denser on sides of mesothorax and mete- 

 pisternum. Beak of male shorter than head and prothorax combined, 

 one-half longer than prothorax, slightly curved; in lateral view rather 

 stout and parallel-sided in basal third, thence rather suddenly nar- 

 rowed, apical half subparallel-sided ; in dorsal view subparallel in 

 apical half, with moderate expansion over antennal insertion; moder- 

 ately punctured in basal half, with sparse pubescence in basal third, 

 apical half finely, sparsely punctured; dorsal sm'face sparsely, finely 

 punctured. Beak of female as long as head and prothorax combined, 

 three-fourths longer than prothorax, slightly curved; apical half 

 subcylindrical, with very sparse, fine punctures; with minute pube- 

 scence slightly distad of antennal insertion. Antennae inserted at 

 distance from eye equal to width of frons, of male at basal sixth, of 

 female at basal seventh; first segment equals next two, second seg- 

 ment shorter than next two, club 0.26 by 0.10 mm. Eyes moderately 

 prominent; frons equals dorsal tip of beak, flat medially. Prothorax 

 at base one-third wider than long, middle slightly narrower than base, 

 apex three-fourths as wide as base; sides beyond moderate basal 

 lateral expansion subparallel in basal half, thence rounded to dis- 

 tinctly constricted apex; in profile dorsal surface slightly arcuate; 

 punctation shallow, coarse, sparse but irregularly placed ; basal fovea 

 lacking. Elytra at humeri two-fifths wider than prothorax at base; 

 2.75 times as long as prothorax, length to width as 11:9; intervals 

 flat, about three times as wide as striae, glabrous, nearly impunctate; 

 stria 1 complete, uniformly impressed throughout, 2 and 9 nearly 

 complete, other striae more or less distinct at base and appear as a 

 row of separated punctures in middle of elytra. Scutellum triangiflar, 

 0.09 by 0.09 mm. Front femora four times as long as wide. Claws 

 with acute basal tooth. 



Special male characters: Tibiae 2 and 3 armed with large, blunt 

 strongly dentate mucrones. 



Types: Holotype male (USNM 63133), Tampico, Tamaulipas, 

 Mexico, December 21, E. A. Schwarz. Allotype female, same data 

 as holotype (USNM). Eight paratypes; five, same data as holotype 



